Apple Tuesday updated its MacBook Air lineup for a new Haswell CPU. The new processor give the entry model a minor bump in speed from 1.3 GHz dual-core i5 to 1.4 GHz. The top end build-to-order option remains at 1.7 GHz dual-core i7 CPU.

Other noteworthy change is apparently iTunes playback has been increased by 1 hour rating on the 11-inch and 2 hours on the 13-inch. I'd guess this is more about iTunes than hardware, however, as other ratings remain the same.